maxstar

Version 1.0.0.0 (2.37 KB) by Robert Dickson
Natural log of a sum of exponentials
4.0
(1)
1.7K Downloads
Updated 30 Mar 2006

View License

maxstar(x) is the natural log of a sum of exponentials overcoming the numerical failure of log(sum(exp(x))) for extreme values of an argument vector x.

maxstar(x,[],dim) has the N-D array features of the MATLAB max function.
maxstar(x,w,dim) is the natural log of a weighted sum of exponentials.

The max* function is described in Lin & Costello, Error Control Coding, 2nd Edition, equation 12.127.

Cite As

Robert Dickson (2026). maxstar (https://se.mathworks.com/matlabcentral/fileexchange/10209-maxstar), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R14SP3
Compatible with any release
Platform Compatibility
Windows macOS Linux
Tags Add Tags

Version Published Release Notes
1.0.0.0

Major revision to reproduce the N-D array features of the MATLAB max function, following a suggestion by John D'Errico.